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Sodium Thiosulfate Pentahydrate Anhydrous USP Analytical Reagent FCC Food Grade Supplier Exporter Manufacturers' Representative |
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Sodium Thiosulfate Pentahydrate Anhydrous
CAS Number: Sodium Thiosulfate Pentahydrate CAS Number 10102-17-7 and Sodium Thiosulfate Anhydrous CAS Number 7772-98-7
Molecular Formula: Na2S2O3 Anhydrous
Molecular Weight: 158.11 Anhydrous
Sodium Thiosulfate Pentahydrate and Sodium Thiosulfate Anhydrous
Sodium Thiosulfate USP Grade Specifications
Na2S2O3-5H2O -- 248.19
Sodium Thiosulfate USP
Contains not less than 99.0 percent and not more than 100.5 percent of Na2S2O3, calculated on the anhydrous basis.
Identification:
A: To a solution (1 in 10) add a few drops of iodine TS: the color is discharged.
B: A solution (1 in 10) responds to the tests for Sodium and for Thiosulfate.
Water: Dry about 1.0 g, accurately weighed, in vacuum at 40 o to 45o for 16 hours: it loses between 32.0% and 37.0% of its weight.
Calcium: Dissolve 1 g Sodium Thiosulfate in 20 mL of water, and add a few mL of ammonium oxalate TS: no turbidity is produced.
Heavy metals: the limit is 0.002%.
Sodium Thiosulfate FCC Food Grade
Sodium Thiosulfate
Sodium Hyposulfite
Na2S2O3-5H2O Formula weight 248.19
DESCRIPTION
Sodium Thiosulfate or Sodium Thiosulphate occurs as large, colorless crystals or as a coarse, crystalline powder. It is deliquescent in moist air and effloresces in dry air at a temperature above 33C. Its solutions are neutral or faintly alkaline to litmus. One gram dissolves in 0.5 mL of water. It is insoluble in alcohol.
Function: Sequestrant; antioxidant.
REQUIREMENTS
Identification
A. Add a few drops of iodine TS to a 1:10 aqueous solution. The color disappears.
B. A 1:20 aqueous solution gives positive tests for Sodium and for Thiosulfate.
Assay: Not less than 99.0% and not more than 100.5% of Na2S2O3 after drying.
Lead: Not more than 2 mg/kg.
Selenium: Not more than 0.003%.
Water: Between 32.0% and 37.0%.
Sodium Thiosulfate Pentahydrate or Sodium Thiosulphate Analytical Reagent Grade
Na2S2O3-5H2O
Formula Weight 248.19
CAS Number 10102-17-7
REQUIREMENTS
Assay: 99.5-101.0% Na2S2O3-5H2O
pH of a 5% solution: 6.0-8.4 at 25C
MAXIMUM ALLOWABLE
Insoluble matter: 0.005%
Nitrogen compounds (as N): 0.002%
Sulfate and sulfite (as SO4): 0.1%
Sulfide (S): Passes test
Specifications of Sodium Thiosulfate Anhydrous Special grade surpassing all the standards:
Specifications of Sodium Thiosulfate Anhydrous surpassing BP USP and Reagent Grade Standards:
Description: It appears as white powder free from foreign particles.
Solubility 10% aqueous solution: Freely soluble in water.
Identification:
(A)Reaction of Sodium
(B)Reaction of Thiosulphate
A solution responds to the test for Sodium and for Thiosulphate
Insoluble Matter: Not more than 0.25%
Calcium: Prescribed Test. No turbidity is produced.
pH: 6 to 8.4
Sulphites and Sulphates: Maximum 0.5%
Heavy Metals: Maximum 0.001%
Sodium Sulphite: Maximum 0.5%
Iron as Fe: Not more than 0.001%
Residual Solvent: To meet the requirement
Assay: Not less than 99% and not more than 100.5% of Na2S2O3 on anhydrous basis.
We also supply Sodium Thiosulfate Pentahydrate and Sodium Thiosulfate Anhydrous os BP Ph Eur Grade.
Please visit SDS Safety Data Sheet of Sodium Thiosulfate Pentahydrate and Sodium Thiosulfate Anhydrous Suppliers.
American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.
Suppliers and Manufacturers' Representative:
9910 Bent Oak Dr
Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
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